S-2
Mathias Kirkerød Music iPhoneiPadiPod touch
S-2 is a free Music app for iPhone and iPad by Mathias Kirkerød. Rated 4.5/5 from 4 ratings. Requires iOS 16.0. Updated August 8, 2026.
- Rating
- 4.5
- 4 ratings
- Price
- Free
- on the App Store
- Size
- 17 MB
- Age 4+
- Updated
- Aug 8
- 2026 · v2.1.1
Screenshots
About S-2
s-2 is a polyphonic synthesizer designed to work with the Roland AIRA Compact S-1. ENGINE Each voice runs two parallel engine slots that mix together. Pick a sound flavor per slot, including: • Classic analog — saw, square, sub, noise, pulse-width • Wavetable • FM • Speech • Chord • Plucked string FILTER AND FX Classic mode runs a vintage-style ladder filter into a simple Delay → Chorus → Reverb chain. Modern mode swaps in a multi-mode SVF (LP / BP / HP) followed by a 3-slot Advanced FX rack with Bitcrusher, Drive, Flanger, Phaser, Auto-Filter, Tape Delay, Plate Reverb and Chorus. MODULATION Two free-routing LFOs (sine / triangle / saw / square / random / noise, with optional clock-sync), a dedicated filter envelope with two destination slots, and a unified mod matrix dialog that visualizes every routing in one place. Click any knob in Learn mode to assign — no digging through menus. FORMATS • Standalone for iOS • Audio Unit (AU) for Logic Pro and other AU hosts • AUv3 plugin for iPad / iPhone in AUM, GarageBand, Cubasis and more - s-2 is an independent third-party application. It is not affiliated with, sponsored by, or endorsed by Roland Corporation. "Roland", "AIRA", "AIRA Compact", and "S-1" are trademarks of Roland Corporation, used here only to describe MIDI compatibility between this app and that hardware.
What’s new
Version 2.1.1 · Updated August 8, 2026
NEW - OUT panel: output meter, gain-reduction meter and a master compressor. - Four new effects in the Extended rack: - Trance Gate - Ring Mod - Comb Resonator - Reverse Delay. - See your sound - The LFO draws its real output as it runs, - The Voice panel has a SCOPE tab with a waveform and spectrum - The envelopes show a dot riding the curve as each note plays. - Tap tempo: double-tap the BPM dial and tap along, or type a number. - Knob pickup for hardware: choose Jump, Catch or Glide. - Tempo sync updated - Signal Flow page - Save your own presets, and delete the ones you don't want, from the preset menu. SOUND - All 41 engines are level-matched. - Envelope knobs are far more precise at short times - Sampled instruments (Grand Piano, Violin, Alto Sax) retouched - Factory patches rebalanced - Reverb pre-delay works as intended INTERFACE - Redesigned dials: clean rings - Unusable dials disabled - Tap any routing label to see which knob it drives. - More smoothness in animations
App privacy
The developer, Mathias Kirkerød, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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